The Bundesliga’s all-star cast did not have too much time to put their feet up this winter before returning to training in preparation for the second half of the 2015/16 campaign.

Click here for an overview of the clubs' winter training activities around the globe

In part two of the series, bundesliga.com checks in with six sides all harbouring vastly different objectives for the remainder of the season.

VfL Wolfsburg

Where were they?

VfL Wolfsburg were one of three Bundesliga clubs to head to the Iberian Peninsula. The Wolves were stationed in Lagos, Portugal.

How they fared

The one-time Bundesliga champions enjoyed a 100 per cent winning run over the winter break, chalking up 2-0 victories over FC Energie Cottbus and Portimonense, before shading a close-fought encounter with Chemnitzer FC 3-2.

New faces/ injuries

Wolfsburg head coach Dieter Hecking has not made any new signings, while centre-back Timm Klose is the only player to have left the club. However, there is still time to bring in new recruits - especially after leading scorer Bas Dost suffered a metatarsal fracture in his left foot.

What's next?

The Wolves, currently three points adrift of the top four in sixth, travel to Eintracht Frankfurt on Matchday 18. After that, they take on two sides knocking at the door of European competition in FC Schalke 04 (h) and 1. FC Köln (a).

1. FSV Mainz 05

Where were they?

After days of glorious winter sun in Marbella, Spain, 1. FSV Mainz 05 stepped up their mid-season workout back home in wet and wintry Mainz.

How they fared

There was a fair amount of rust on the gears as the 05ers went own 3-0 to R. Standard de Liege in their first real test of the winter break, but Martin Schmidt's charges responded by beating Club Brugge KV 2-0 and Bundesliga rivals Köln 1-0.

New faces/ injuries

Austria international forward Karim Onisiwo has swapped SV Mattersburg for Mainz's homely Coface Arena, while Chilean defender Gonzalo Jara has left the club by mutual consent.

What's next?

Mainz will receive a thorough examination of their top-six credentials in the coming weeks against promoted FC Ingolstadt 04 (a), high-flying Borussia Mönchengladbach (h) and relegation-threatened Hannover 96 (a).

1. FC Köln

Where were they?

Köln lived up to their tough-nut reputation by sticking around to brave the north German winter.

How they fared

The Billy Goats kicked off 2016 with a 2-0 success over Bundesliga 2 side FSV Frankfurt, but suffered a 1-0 defeat to Mainz in a behind-closed-doors-friendly. Rot-Weiß Erfurt provide their final test of the winter break on 19 January.

New faces/ injuries

Brazilian defender Pedro Geromel, Japanese forward Kazuki Nagasawa and Norwegian striker Bard Finne have all moved on, but there is one fresh face at the club in the form of Serbian left-back Filip Mladenovic.

What's next?

The Billy Goats will have they work cut out when they return to Bundesliga action at improving VfB Stuttgart. After that, it's Wolfsburg at home and Hamburger SV away.

Hamburger SV

Where were they?

Hamburger SV have seen plenty of the white stuff this winter, but not before making the most of their warm weather training camp in Belek, Turkey.

How they fared

The results have not been great for HSV, who lost 3-1 to AFC Ajax, 2-1 to Rot-Weiß Erfurt and 2-1 to BSC Young Boys.

New faces/ injuries

Defenders Ronny Marcos and Marcelo Diaz have moved on to pastures new, but perhaps the biggest and most encouraging news for HSV of the winter transfer window is head coach Bruno Labbadia's recent contract extension.

What's next?

Hamburg have the pleasure of entertaining Bundesliga leaders FC Bayern München on Matchday 18, with more favourable outings against Stuttgart (a) and Köln (h) to come.

FC Ingolstadt 04

Where were they?

Despite making an admirable start to their maiden Bundesliga campaign, Ingolstadt opted to remain in Bavaria for the duration of the winter break.

How they fared

Die Schanzer faced lower league opposition on four occasions, drawing with Bundesliga 2 duo VfR Aalen and 1. FC Kaiserslautern either side of posting wins over third tier side SG Sonnenhof Großaspach and Bundesliga 2's Karlsruher SC.

New faces/ injuries

Paraguay international striker Dario Lezcano has joined the club from Swiss outfit FC Luzern in a bid to remedy FCI's lack of punch in front of goal, the Bavarians having netted a league-low 11 goals in 17 matches so far this term. Meanwhile, 21-year-old midfielder Thomas Pledl has moved to SV Sandhausen on loan.

What's next?

Ingolstadt picked up six points from their first three Bundesliga matches in summer 2015. They will be well placed if they can at least match that tally in reverse fixtures against Mainz (h), Borussia Dortmund (a) and FC Augsburg (h).

FC Augsburg

Where were they?

Augsburg's reward for hauling themselves out of the relegation zone towards the end of 2015 and qualifying for the UEFA Europa League round of 32 was a trip to Spain's Costa del Sol.

How they fared

Die Fuggerstädter's impressive form has continued into 2016 with winter friendly wins and clean sheets against third-tier side SG Dynamo Dresden and Swiss giants FC Basel 1893.

New faces/ injuries

Swiss 18-year-old forward Albian Ajeti (Basel) and 24-year-old Dutch defender Jeffrey Gouweleeuw (AZ Alkmaar) have joined the Augsburg ranks, while Serbian forward Nikola Djurdjic has returned to the club following a loan spell with Malmö FF. Veteran forward Sascha Mölders will spend the rest of the season at Bundesliga 2 side TSV 1860 Munich.

What's next?

A Matchday 18 trip to third-placed Hertha Berlin should provide a good yardstick of where Augsburg are at. They then host Eintracht Frankfurt and travel to Ingolstadt, before tackling FC Bayern on Matchday 21.

Click here for part I of our winter review series

Click here for an in-depth look at how your favourite Bundesliga outfit has fared so far this season